| http://www.w3.org/ns/prov#value | - develop, the addition of ponds to subdivisions will help control concerns of sedimentation and pollution.?????? Retention ponds may be included in new subdivision designs and added to already existing subdivisions.??? These ponds are one of the least expensive BMP's to build when compared to others such as infiltration trenches, basins, and sand filters (EPA 1999).
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